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	食用蔬菜能吸收和积累微塑料期刊论文 OAI收割科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934 作者: 李连祯; 周倩; 尹娜; 涂晨; 骆永明 \| 收藏 \| 浏览/下载：153/0 \| 提交时间：2020/06/17 微塑料生菜聚苯乙烯微球吸收积累健康风险 microplastics lettuce polystyrene microbeads uptake accumulation human health risk Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
	航天废弃物中氧的水热回收方法与污染物控制机制研究学位论文 OAI收割北京: 中国科学院生态环境研究中心, 2018 作者: 史瑞 \| 收藏 \| 浏览/下载：39/0 \| 提交时间：2019/07/18 航天废弃物,环控生保系统,氧循环利用,废弃药物,水热处理 Spaceflight Solid Waste, Environmental Control And Life Support System, Oxygen Recycling, Waste Medicine, Hydrothermal Treatment
	Review on water leakage control in distribution networks and the associated environmental benefits 期刊论文 OAI收割 JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA, 2014, 卷号: 26, 期号: 5, 页码: 955-961 作者: Xu, Qiang 收藏 \| 浏览/下载：17/0 \| 提交时间：2015/03/24 water leakage control water distribution system environmental benefits
	Highly expanded flashing liquid jets in vacuum environment 会议论文 OAI收割 Beijing, China, September 23, 2013 - September 27, 2013 作者: Du WF(杜王芳); Zhao JF(赵建福) \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2018/11/08 Environmental management Evaporation Fighter aircraft Jets Nozzles Shock waves Solenoid valves Solenoids Syringes Testing Environmental control system Environmental pressures Flashing liquid jets Initial temperatures Injection temperature Low pressure environment Pressurized liquids Saturation pressure
	A method of outdoor simulation of infrared radiance of targets (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China Song J.-T.; Shen X.-H.; Zhao Y.-J. 收藏 \| 浏览/下载：37/0 \| 提交时间：2013/03/25 Current research on infrared simulation often focuses mainly on infrared imaging simulation by computer and pays little attention to outdoor simulation of infrared radiation characteristics of targets. In order to simulate infrared radiance of targets outdoors in this paper we propose a new outdoor simulation method on the basis of heating the cloth by electricity. There are two major contributions in the paper. Firstly uneven distributing of temperature field of the cloth surface is considered and the long-wave thermal imager is used as a link of the temperature control system. On the basis of many experiments the expression is concluded about the relation of the temperature obtained by the lone-wave thermal imager and the temperature obtained by the temperature control system and the environmental temperature at the experimental scene. Secondly the influence of the environment at the experimental scene on the infrared radiance of the cloth surface is thought over. Thanks to two measures above simulation precision of infrared radiance is made much better. The results of many outdoor experiments demonstrate the performance of the proposed approach. 2009 SPIE.
	城市环境福利及其适应性管理的理论与实践研究学位论文 OAI收割博士, 北京: 中国科学院研究生院, 2008 刘建昌收藏 \| 浏览/下载：48/0 \| 提交时间：2010/06/28 环境福利城市化评价指标体系系统优化适应性管理 Environmental welfare urbanization assessment indicator system optimization control adaptive management.